Ariz. Sheriff: Report of $1M Bounty On His Head

A sheriff in Arizona known for his anti-illegal immigration policies says his office is investigating a report of a $1 million bounty on his head.

A spokeswoman for Maricopa County Sheriff Joe Arpaio says the report was relayed by the FBI and by a caller who told Fox affiliate KSAZ-TV in Phoenix that the threat was from a Mexican drug cartel. Phoenix is the seat of Maricopa County.

Lisa Allen says it wasn't known whether the threat actually came from a drug cartel but authorities believe it was made using a disposable cell phone in Mexico.

Arpaio says it's not unusual for him to receive death threats as sheriff and an outspoken advocate of immigration enforcement.